FQPV
FQPV2 Mass Flow Controller
The FQPV2 mass flow controller uses a super fast analog PID to drive an electric current to a true proportional solenoid valve in order to vary the media flow rate. The mass flow of the media is quickly detected by the F-series mass flow transducer and the electric signal is provided to the PID control circuit. This high speed mass flow controller is a complete package consisting of a proportional flow control solenoid valve, mass flow transducer, and high speed PID control circuit to close the loop. All you need to provide is source air pressure, power and an electronic control signal.
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Accuracy ±
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Repeatability ±
Max Flow (SCFM)
Max P1 (PSI)
FQPV2 Downloads & Links
| Documents | Links | Downloads |
| F-Series Flow Transducer | File Request Form: Use this form to request a file other than a standard FQPV2 .STEP file | |
| Submit the form below to download standard FQPV2 .STEP files
|
FQPV2 Downloads & Links
| Documents |
| Installation Guide |
| Sales Brochure |
| Links |
| F-Series Flow Transducer |
| Downloads |
| FQPV2_Schematic Symbol |
| File Request Form |
FQPV2 Technical Specifications
| Max Inlet Pressure | Accuracy | Repeatability | Lowest Control Flow |
| 150 PSI (10.34 Bar) | ±4% F.S. | ±0.25% F.S. | 4 to 40 SCFH (1.89-18.9 LPM) |
| Port Size | Durability | Ambient Temps | Media Temps |
| 1/8″ NPT (BSPP Available) | Immune to shock & vibration (up to 20 Gs) | 32-158°F (0-70°C) | 32-122°F (0-50°C) |
| Turn-Down Ratio | Filtration | Power Requirement | |
| 10:1 (inquire about 20:1) | 40 Micron | 17-24 VDC |
FQPV2 Technical Specifications
| Max Inlet Pressure |
| 150 PSI (12 Bar) |
| Minimum Inlet Pressure |
| 15 PSI (1 Bar) |
| Accuracy |
| ±4% F.S. |
| Repeatability |
| ±0.25% F.S. |
| Lowest Control Flow Range |
| 2 to 20 SCFH (0.94-9.4 LPM) |
| Turn-Down Ratio |
| 10:1 (Inquire about 20:1) |
| Port Size |
| 1/8″ NPT (BSPP Available) |
| Durability |
| Immune to shock & vibration (up to 20 Gs) |
| Ambient Temps |
| 32-158°F (0-70°C) |
| Media Temps |
| 32-122°F (0-50°C) |
| Temperature Sensitivity |
| 0.25% / °C |
| Filtration |
| 40 Micron |
| Protection Rating |
| IP65 |
FQPV2 Mass Flow Controller
The FQPV2 electronic mass flow controller is able to control gas flow rates as low as 2 SCFH to as high as 1 SCFM with a 10:1 turn-down ratio. For flow rates below one standard cubic foot per minute (scfm), an F-series flow transducer is used as electronic feedback to an FQPV2 control valve.
The FQPV2 has an internal analog PID (proportional, integral & derivative) control circuit which matches the user provided electronic command signal to the electronic flow rate feedback signal from the F-series mass flow transducer. The circuit achieves this by modulating the drive current to a linearly-variable proportional solenoid valve inside the FQPV2 mass flow controller. Because direct proportional solenoid control is limited to low flow rates, this complete flow control package is limited to 1 scfm. However, direct control with a proportional solenoid does allow for extremely high resolution flow control.
FR
Requires a known and fixed regulated supply pressure to maintain calibration
FP
Compensates for fluctuations in inlet pressure (up to 50%) to maintain calibration
FA
Requires output port open to atmosphere. Most commonly used in cylinder speed control.
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